Leakage failure analysis of a 60 m3 LNG storage tank
文献类型：期刊论文
| 作者 | Li, Tianfu; Qu, Shen; Zang, Qishan; Dong, Chen; Fu, Changming; Zhang, Zhefeng |
| 刊名 | ENGINEERING FAILURE ANALYSIS
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 153页码:15 |
| 关键词 | Failure analysis 304 stainless steel LNG storage tank Martensite transformation Stress corrosion cracking |
| ISSN号 | 1350-6307 |
| DOI | 10.1016/j.engfailanal.2023.107591 |
| 通讯作者 | Qu, Shen(squ@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn) |
| 英文摘要 | This work aimed to analyze a leak that occurred in a 60 m3 LNG storage tank made of 304 stainless steel. Optical microscopy (OM), scanning electron microscope (SEM), energy dispersive spectrometer (EDS), transmission electron microscope (TEM), and mechanical property and hardness tests were conducted to characterize the failed storage tank. The results show that the crack originates near the circumferential weld of the lower head and propagates perpendicular to the weld. There are dense corrosion pits near the crack paths, and high contents of Cl and S in the crack and pits. Besides this, deformation-induced martensite transformation occurs during the cold spinning process of the head, and the microstructure undergoes embrittlement. In service, the lower head subjected to greater internal pressure, plus the structural stress caused by martensite transformation and the welding residual stress, combined with the action of corrosive medium, stress corrosion cracking (SCC) occurs near the circumferential weld of the lower head. To prevent SCC on storage tank, it is suggested to utilize 304 stainless steel with a low content of delta-ferrite, and apply solution treatment after spin molding of the head of tank. |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001106680100001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.imr.ac.cn/handle/321006/177264]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Qu, Shen; Zhang, Zhefeng |
| 作者单位 | Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Tianfu,Qu, Shen,Zang, Qishan,et al. Leakage failure analysis of a 60 m3 LNG storage tank[J]. ENGINEERING FAILURE ANALYSIS,2023,153:15. |
| APA | Li, Tianfu,Qu, Shen,Zang, Qishan,Dong, Chen,Fu, Changming,&Zhang, Zhefeng.(2023).Leakage failure analysis of a 60 m3 LNG storage tank.ENGINEERING FAILURE ANALYSIS,153,15. |
| MLA | Li, Tianfu,et al."Leakage failure analysis of a 60 m3 LNG storage tank".ENGINEERING FAILURE ANALYSIS 153(2023):15. |
入库方式： OAI收割
来源：金属研究所
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